I have noticed a few people having issues with auto respawning. It happened to my server after a FiveM update so this is for any servers which are experiencing the same issue.
How to install:
Simply open your FiveM server's resources folder and drag and drop these two folders ([managers] and [gamemodes]), replace all files.
if this breaks your server or causes any issues in any way feel free to re-install the basic cfx-server-data